建国以来,江苏的林业建设速度很快,现在已经取得了显著的成绩。据1986年省农林厅林业局统计,全省有成片林722.4万亩,较1979年增长48.5％,林木蓄积量2500万立方米,较1979年增长65.3％,森林覆盖率由6％上升为8％,建农田林网达3000万亩,占可建林网农田面积的50％;四旁树木12亿株,其蓄积量占总蓄积量的75％。在此情况下,江苏的林业发展是否还有潜力,值得研究,探讨。本文试就如何进一步开发利用这方面潜力,坚持合理的培育方向,促使林木年龄和径级的结构更为合理,谈点看法,供生产上参考。 一、江苏林业的发展目标,应该是生态效益和经济效益并重的双向目标 江苏林业发展的目标当然是由江苏的农区林业性质所决定的。因为既然是农区林业,农村环境保护就应为其重要的内容,中低产农田综合治理,整治国土、促进自然生态良性循环也是农区林业的根本问题,然而农区林业,也要为农村的商品经济服务,为改善农业经济结构服务,特别是现在树权大多属农民所有,他们更尤其关心直接经济效益的高低,为此,提高农区林业的经济效益就成为发展江苏林业的关键所在。这里需要指出的是,虽然江苏林业的发展应该追求生态效益和经济效益并重的双向目标,林业产值占 Since the founding of the People’s Republic of China, the forestry construction in Jiangsu has been very fast. Now remarkable achievements have been made. According to the 1986 Provincial Department of Agriculture and Forestry Bureau of Forestry statistics, the province has become a piece of forest 722.4 hectares, an increase of 48.5% over 1979, the volume of forest 25 million cubic meters, representing an increase of 65.3% in 1979, forest coverage increased from 6% 8%. The farmland has a network of up to 30 million mu, accounting for 50% of the farmland that can be built in the forest network. There are 1.2 billion trees on four sides, accounting for 75% of the total stock. Under such circumstances, is there any potential for the development of forestry in Jiangsu? It is worth studying and discussing. This paper tries to explore how to further exploit the potential in this area, insist on a reasonable direction of cultivation, and promote the structure of tree age and diameter class more reasonable, talk about the point of view for production reference. First, the goal of Jiangsu’s forestry development should be a bi-directional goal of equal ecological benefits and economic benefits The goal of Jiangsu’s forestry development is certainly determined by the nature of forestry in rural areas in Jiangsu Province. Because since it is a rural forestry, rural environmental protection should be its important content, comprehensive management of low-yield farmland, remediation of land, and promote a virtuous circle of natural ecology is also a fundamental issue of agriculture in rural areas, but also for rural areas, forestry, but also for rural In order to improve the economic structure of agricultural economy, most of the tree rights now belong to farmers. Most of them are especially concerned about the direct economic benefits. Therefore, improving the economic benefits of rural forestry has become the key to the development of forestry in Jiangsu Province. What needs to be pointed out here is that although the development of forestry in Jiangsu should pursue the two-way goal of equal ecological benefits and economic benefits, the output value of forestry accounts for